Sewage separator



Aug. 19. 1924. 1,505,148 J. KINDLE SEWACYE` SEPARATOR Filed Hay 22 1922 2 Sheets-Sheet l atroz new Aug 19, 1924.

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ilad May 22, 1922 J.- KINDLE SEWAGE SEPARATOR @Hozucq Patented Aug. 19, 1924.

UNITED STATES JONATHAN KINDLE, 0F PITIVIAN, NEW JERSEY.

SETAGE SEPARATOR.

Application led May 22, 1922.

To @ZZ fui/tom 'it may concern:

Be it known that l, JONATHAN KiNDLE, a citizen oit the United States, residing at Pitman, county of Gloucester, and State of New Jersey, have invented certain new and useiinlImprovements in Sewage Separatore, of which the following is a specification.

This invention relates to a separator for use in separating a mixture of liquids ot diit'erent specific oravities and also for separating sludge and solid materials from such mixture.

One object of the invention is to provide a separator which will eitectively and thoroughly separate the oil and grease from the water in sewage or other drainage and particularly which will separate the oil so that the lighter oil constituents may be recovered separately from the heavier oil constitucnts. A. further object is to provide a device of this kind which can be placed at the discharge end of a sewer or other drainage system or at any other convenient place and which will operate continuously to efiect the separation of the oil and the sludge trom the water of ,the sewage with little or no attention and without the necessity o'tI olvierating valves of any kind. Otherobjects and advantages of the invention will be apparent trom the details of construction hereinafter set forth and illustrated in the accompanying drawings in which:

Fig. 1 is a side elevation of a device constructed according to my invention5 certain parts being' shown in section.

Fie; i). a vertical longitudinal section ot' the de ice` certain parts being` omitted.

Fig'. 3 is e horizontal sectional view substantially on the line 3-3 ot Fig. 2.

Fig. et is a transverse vertical. sectional view substantially on the line est of Fig'. 2.

Referring to the vdrawings in detail, 10 indicates a catchy basin which is preferably employed with. the separator proper, this basin being' connected to the sewer or conduit 11 troni which the sewage` or other drainage flows. The catch basin is intended particularly to catch lthe sand gravel and heavier particles o't the. sewage before the same pass into the other parts of the separator. Pret Serial No. 562,779.

erably the catch basin 10 is provided with a transverse partition 12 which serves to separate the lower portion of the same into two compartments, although it is to be understood that such partition may be omitted it desired. The catch basin 10 may be provided with any suitable cover not shown which may be removed from time to time to permit cleaning oi." the basin.

The separator proper ot my invention includes a primary or circulating chamber A. and a secondary or separating chamber B. Any suitable means may be provided for conducting` the sewage from the catch basin 10` to the primary or circulating chamber A.. Preferably l employ a plurality oi' pipes 13 which are shown asextending through the upper portion of the secondary chamber B and terminating within the primary chamber A.. This is a desirable arrane'ement of the pipes 13 but it is to be understood that if preferred the catch basin and circulating chamber A may be so arranged as to make it unnecessary to place these. pipes within the chamber B.

Within the chamber A, l provide a spreading platform 14 which extends vfrom side to ide of the chamber and which is arranged beneath the ends of the inlet pipes 13. This spreading platform serves to receive the material as it enters the chamber il.. and cperates to scatter or spread the same. Wvithin the chamber A and below the platform 1,1 T also arrange'a baille 15 which is preferably mounted in an inclined position as shown particularly in Fig. of the di' awing. This baille preferably extends from' one side to the other of the chamber A. The upper and lower ends ot this baille, however. are sepa-- rated a short distance from the adjacent ends of the chamber A. thus providing an upper passage 16 and a lower passage 17 which passages afford open communication between the upper and lower portions of the chamber A. Tt it, of course, apparent that the battle 15 could be arranged to extend entirely from the front to the rear wall of the chamber si and be provided with openings in its ends to accomplish the purpose ofi the passages 16 and 17.

The primary or circulating chamber A is in communication with the secondary or settling chamlber B through the medium of one or more pipes or conduits 1S, these conduits serving to convey the liquid from the former chamber to the latter. The inlet ends of the conduits 18 are arranged beneath the inclined baffle 15 so that liquid entering the chamber A through the conduits 13 must pass ydownwardlybeneath the bafiie 15 before passing to the separating chamber B. The bafe 15 is preferably so arranged that after the liquid and solid material carried thereby pass from the platform, they will come `in contactl with the bafiie and move downwardly through the passage 17 into the lower portion of the chamber A beneath the baffle 15. The liquid in this portion of the chanrber is comparatively quiet and subjected to little agitation, which fact facilitates deposition of the sludge and solid materials on the bottom of the chamber.

As hereinafter explained, the normal liquid level in the chambers A and B may be maintained at any point desired depending upon the position of the final discharge outlet of the separator. Preferably this dis charge outlet is so arranged as to maintain the liquid level in these chambers substantially at the top of the conduits 18.

It will be understood that any light oils or other light materials in the liquid entering the chamber A will rise to the surface Y thereof and in order that such light oils may escape from the chamber A, I provide an oil outlet pipe 19 which is so positioned relative to the normal liquid level in said chamber as to permit escape of such oils floating `on the surface of the rest of the liquid.

The water and heavier oils and other heavierA constituents of the sewage after passing over the spreading platform 11 will move downwardly along the baffle 15 as heretofore explained. In case any light oil or other light material separates from the rest of the fluid in the lower and relative. quiet portion of the chamber A, they may, of course, pass upwardly through the passage 16 and escape through the oil pipe 19, heretofore mentioned.

The chamber A is preferably provided with an inclined bottom 20 as particularly appears from Fig. 4 of the drawing, the purpose of which is'to cause the sludge and heavy particles of the sewage to gravitate downwardly toward one side of the chamber. Connected to the bottom of the chamber A, adjacent the lower portion of the inclined bottom 20, I provide a device for removing such sludge and heavier particles. This device preferably consists of an inclined pipe 21 which communicates, as already stated, with the lower part of the chamber A and which is provided with an internal screw conveyor 22 operated in any suitable manner as by an electric motor or by the force obtained from the flow of the water in the sewage. The screw 2Q serves to draw the sludge from the lower portion of the chamber A and carry it to anil suitable point, depositing the same, if desired, in the water flowing away from the separator.

lt will thus be seen that the chamber A serves to a considerable extent in separating the light oils and other light constituents from the rest of the fluid in the sewage and also serves to separate the sludge and other heavier particles therefrom.

To effect more complete separation of the constituents of the sewage, the secondary or separating chamber B is provided to which, as already noted, the liquid flows from chamber A through the conduits 18. Hthin the chamber B I preferably arrange a trough 23 which is positioned to receive the fiuid issuing from the pipes 1S. One or more return pipes Q4 communicate with the bottom of the trough 23 and lead back into the lower portion of the chamber A. These return pipes 24 serve the purpose of catching and returning to the chamber A any sludge or heavier particles which might have been carried along with the fluid as it passes out of the chamber A. It is to be under stood, however, that the trough 23 and return pipes 24 may, if desired, be omitted as such parts are not always essential to the successful operation of the device.

A series of discharge pipes 25, preferably arranged in an inclined position as shown particularly in Fig. 2 of the drawing, communicate with the lower portion of the chamber B and these pipes are arranged to discharge into a suitable discharge chamber 26 which may be of any form desired. The inlet ends of the pipes 25 are preferably inverted and positioned near the bottom of the chamber B so that any light sludge or any heavier liquid particles collcrting near the bottom of the chamber B will flow through said pipes and be discharged from the chamber B.

As heretofore noted, the parts of the apparatus are so arranged as to maintain the level of liquid at substantially the top of the chamber A and this is also true of the chamber B. In view of the fact that the fluid entering the chamber B is subjected to little or no agitation therein, opportunity is permitted in that chamber for a further and more complete separation of the oil and other products from the water. Such oil and other products thus separated in this chamber may escape therefrom through an oil discharge pipe 19 arranged similarly to the oil discharge pipe 19. It will, of

course, be apparent that the oil discharged from the pipe 19A will be of a heavier character than that from the discharge pipe 19 and my device therefore serves to rec-over the oil from the sewage in two fractions, one of which is considerably lighter than the other.

As already noted, the pipes communicate with the uptake discharge chamber 26 and from this chamber the Huid which is now practically nothing but water, is discharged into a suitable spill-Way as 27 or if desired into a suitable receiving conduit.

t will be apparent that the level of the discharge outlet of the uptake chamber 26 determines the normal liquid level in the chambers A and B. In the construction shown in the drawing the level of the liquid will be determined by the location of the point 30 which, as shown, is substantially on the same level as the top of the inlet pipes 13 of the chamber A heretofore referred to. The result is that the liquid level in chambers A and B will be maintainedr at a height sufficient to permit escape of the oil and other floating material through the pipes 19 and 19A. It is apparent that the discharge outlet for the discharge chamber 26 may be arranged in a lower position than that shown in the drawing, in which case it would, of course, be necessary to lower the position of the oil discharge pipes 19 and 19A.

The chambers A and B are preferably provided with vent pipes 81, 31 communieating with the top thereof and I also preferably provide a by-pass pipe 33 which communicates with the bottom of the chamber B and extends upwardly therefrom to a point slightly above the normal liquid level in the chambers A and B and terminates at the spill-way 27 or any other suitable point. This by-pass serves to carry away the liquid in case the apparatus becomes clogged or an excess amount of liquid is received.

In the construction of my separator I preferably employ concrete although it is evident that other materials may be used for building the same.

Various changes may, of course, be made in the foregoing construction without departing from the spirit of the invention or sacrificing any of the advantages thereof.

Having thus described my invention what 'f fi claim as new and desire to secure by Letters Patent is:

1. In a separator, in combination, a chamber having an inlet, a baffle arranged in said chamber above the bottom thereof and below said inlet, a conduit arranged in said chamber above the bottom thereof and eX- tending through said baffle for conducting fiuid from said chamber, the intake end of said conduit being arranged horizontally beneath said bafe, means for receiving the liquid discharged from said conduit, said receiving means being provided with an outlet positioned to maintain the desired depth of liquid in said chamber, and means for conducting away oil collecting on the surface of the liquid in said chamber.

2. In a separator, in combination, a chamber having an inlet, an inclined baffle arranged in said chamber above the bottom thereof and below said inlet, a conduit arn ranged in said chamber above the bottom thereof and extending through said baiiie for conducting Huid from said chamber, the intake end of said conduit being arranged horizontally beneath said baffle, means for receiving the liquid discharged from said conduit, said receiving means being provided with an outlet positioned to maintain the desired depth of liquid in said chamber, and means for conducting away oil collecting on the surface of the liquid in said chamber.

3. In a separator, in combination, a chamhaving an inlet, an inclined baffle arranged in said chamber above the bottom thereof and below said inlet, the upper and lower ends of said baffle being spaced from the adjacent ends of said chamber, a conduit for conducting iiuid from said chamber, said conduit being arranged in a substantially horizontal plane, the intake end thereof being arranged horizontally beneath. said baffle, means for receiving the liquid discharged from said conduit, said receiving means being provided with an outlet positioned to maintain the desired depth of liquid in said chamber, and means for conducting away oil collecting on the surface of the liquid in said chamber.

4. In a separator, in combination, a primary chamber having an inlet, a baiiie arranged in said chamber below said inlet, secondary chamber, a conduit arranged in said primary chamber above the bottom thereof and below said inlet, said conduit extending from a point horizontally beneath said baffle in the primary chamber into said secondary chamber, a discharge chamber connected to said secondary chamber, and means for conducting away oil collecting on the surface of the liquid in said primary and secondary chambers.

5. In a separator, in combination, a primary chamber having an inlet, a substantially horizontal spreading platform arranged bee neath said inlet to receive and spread the material entering said chamber, an inclined baffle arranged in said chamber beneath said inlet, a secondary chamber, a substantially horizontal conduit extending from said primary to said secondary chamber, the inlet to said conduit being positioned beneath said baffie and above the bottom of said primary chamber, means for maintaining the liquid at the desired level in said chambers, and

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vprimary chamber, means for maint the liquid at the desired level in said chainbers, and means for conducting away oil collecting on the surface of the liquid in. .each of said chambers.

7. ln a separator, in combination, a prilmary chamber having an inl'tt, a spreading platform arranged beneath said inlet, an inclined baille mounted in said. chamber anc positioned to receive material passing from said platform, the upper and lon'e' ends ot saidbattle being spaced from the adjafenl' Walls ot' said chamber, a second ry chamber, a. conduit extending trom said primary chamber to said secondary chamber, the inlet of said conduit being positioned horizontally beneath said baille, a discharge chamber connected to said secondary chamber and an ranged to maintain the desired level of liquid in said primary and secondary chan'ibers, and means 'for conducting away oil collecting on the surta-ce ot the liquid in said primary and said secondary chambers.

8. In a separator, in combination, a primary chamber and a secondary chamber, a catch basin, a conduit extending from said catch basin through said secondary chamber into said primary chamber, a conduit extending rom said primary chamber into said secondary chamber, a discharge chamber connected to said secondary chamber, said discharge chamber having an outlet arranged to maintain the desired level of liquid in said primary and secondary chambers,

and means Jfor conducting aivay oil collecting on the surface of the liquid in said primary and secondary chambers.

9. In a separator, in combination, a primary chamber and a secondary chamber, a catch basin, a conduit extending ,trom said catch basin to said primary chamber, said conduit being arranged in the upper portion oiI said secondary chamber, a conduit connecting said primary chamber with said secondary chamlier, said last named conduit being` arranged at a lower level than said lirst named conduit, a discharge chamliier, a conduit extending from said secondary chamber to said discharge chamber, mfans for maintaining the liquid at the desired level in said primary andsecondary chambers, and means for conducting away oil collecting in said last named chambers.

v.10. In a separator, in combination, a primary chamber having an inlet, an inclined baille extending transversely of said chamber beneath said inlet, a secondary chan'lber, a conduit extending from a point beneath said ballie into said secondary chamber, said primary chamber having an inclined bottom, means for maintaining,r the liquid at the desired level in said chambers. means for conducting away oil collecting on the snrilace ot the liquid in said chambers` a conduit cnnnnnnicating with said primary chamber at the lower side of the inclined bottom thereof, and means tor \\'i'lnlra\ving sludge 'from said chan'iber through said last named ll. Vin a separator, in combination, a primary chamber and a secondary chamber, a catch basin, a conduit extending trom a point above the bottom of said catch basin into said. primary chamber, said conduit bcing arranged in the upper portieri o1 said secondary chamber, a spreading platform in said primary chamber beneath the outlet of said conduit, a baiile in said secondary chamber arranged to receive the material de sccnding trom said spreadingl platform, a, conduit exterufling from a point beneath said baille into said secondary chamber, a trough in said secondary chamber beneath the out let oi' said last named conduit, a pipe communicating with said trough and extending into said primary chamber, an uptake chamber, a. conduit extending from the bottom of said secondary chamber into said uptake chamber, the outlet of said uptake chamber being arranged to maintain the liquid at the desired level .in said primary and secondary chambers, and means for conducting away oil collecting` on the surface of the liquid in said last named chambers.

12. A separator including a primary chamber, a secondary chamber and an uptake chamber. said primary chamber having an inlet, a baiiie extending transversely of said chamber beneath said inlet` a conduit arranged in said primary chamlwr and extending rom a point horizontally beneath said battle into said secondary chamber, a conduit extending from the bottom of said secondary chamber into said uptake chamber, the outlet of said uptake chamber beingr arranged to maintain the desired level of liquid in said primary and secondary chambers, and means 'for coiulnctingT away oil cob lecting on the surface ot the liquid in each of said last named chambers.

13. In a separator, in combination. a primary chamber haring an inlet. a secondary chamber, a discharge chamber having an outlet arranged to maintain the desired level of liquid in said chambers, a conduit extending from said primary chamber into said secondary chamber, a conduit extendlll() fix ing,1 from the lower part oi said secondary chamber into the loiver part oit said outlet chamber, said conduit being' arranged belen' the normal liquid level `in said cha-nib ,3, and a bypass pipe conin'iunieating at one end with the lower part oit said secondary chamber and having' its other end communiwith the upper end ot said discharge amber. i Y i .el separator comprising?,v a settling); tank, a secondary chamber, a primary chamber and an uptalre chamber arranged in suc cession, a conduit extendingr from said settling` tank through the upper portion ot said secondary chamber into said primary chamw ber, a conduit extending; :trom said primary chamber into said secondary chamber, a conduit extending trom said secondary chamber through Athe lower portion of said primary chamber into said uptake chamber, the outlet of said uptake chamber being arranged to maintain the desired liquid level in said primary and secondary chambers, and means for ivitl'idraiving oil collecting); on the surface of the liquid in each ot said last named chambers.

l5. A separator comprisinga settling;v tanln a secondary chamber, a primary chamber and an uptake chamber arranged in succession, a conduit extending; from said settling tanlt through the upper portion oi said secondary chamber into said primary chamber, a conduit extendinpj from said primary chamber into said secondary chamber, a conduit extending` from said secondary chamber through the loiver portion of said pri mary chamber into said uptake chamber, the outlet oi said uptake chamber being' arranged to maintain the desired liquid level in said primary and secondary chambers, means for vvitlidraivingK oil collecting` on the surface ot the liquid in each of said last. named chambers, and means for Withdrawing sludge from the bottom ot said primary chamber.

16. In a separator, in combination, a primary ch-amber having' an inlet, an inclined baille extending` transversely of said chamber beneath said inlet, said. baille being` positioned above the bottom of said chamber, means for withdrawing sludge 'from the bottoni oit said chamber, a secondary chamber, a conduit extending;` from a point beneath said baille in the primary chamber and through said baille to said secondary chamber, means for maintaining the desired level oi liquid in said chambers, and means for withdrawinsr` oil collecting); on the surface of the liquid in each of said chambers.

li". ln a separator, in combination, a catch basin, a primary chamber, a secondary chamber, a plurality of conduits extending from said catch basin through the upper portion of said secondary chamber into said primary chamber, a plurality of conduits arranged in said primary chamber beneatl said drst named conduits and extending,v 'from said primary chamber into said secondary chamber, an uptalo chamber., a plurality of conduits extending from said .secondary chamber through the lower portion of said primary chamber into the lower part of said uptake chamber, the outlet. oit sain uptake chamber being arranged to maintain the desired liquid level. in said primary and secondary chambers, and means for Withdrawing oil collecting on the surface of the liquid in each of said last named chambers.

18. ln a separator, in combination, a primary chamber having` an inlet, a spreading` platform arranged below said inlet., an inclined baille arranged beneath said platform and extending' transversely ont said chamber, the upper and lower ends of said batlie be ingf spaced from the adjacent Walls of said chamber, a secondary chamber, a conduit arranged in said primary chamber and extending from a point below said battle in the primary chamber into said secondary chamber, means communicating' with said primary chamber below said baille for Withdraiving; sludge from said chamber, means 'for maintaining; the desired level of liquid in said primary and secondary chambers, and means for Withdrawing oil collecting on the surface ot the liquid in each of said chambers.

i9. ln a separator, in combination, a circulating chamber having` an inlet, a baille extending` transversely of said chamber and dividing the same into an upper and a lower portion, a settling' chamber, a conduit eX- tendingr from said circulating chamber through said balde and into said settling chamber, a second conduit arranged belenr said Erst conduit and forming communication between the lower portion ci said circulatine` chamber and said settling chamber. means for maintaining the desired level of liquid in said chambers, and means 'for Withdraiving oil from the surface of the liquid in each of said chambers,

20. ln a separator, in combination,a primary chamber and a secondary chamber, a catch basin, a conduit extending;` from said catch basin to said primary chamber, said conduit being arranged in the upper portion ot said secondary chamber, a conduit connecting` said primary chamber ith the secondary chamber, said last named conduit being arranged at a lower lever than said rst named conduit, a discharge chamber connected to said secondary chamber and arranged to maintain the desired level of liquid in said first named chambers.

2l. ln a separator, a primary chamber and a secondary chamber havingV a separating Wall between the same, a conduit extend .ing through theupper portion of the secondary chamber, means for maintaining the ondary chamber and through said wall into desired liquid level in said chambers. and 10 the primary chamber, abaie in said primary means for withdrawing oil from the fnn'face Chamber below theoutlet of said conduit, al of the liquid in said chambers.

conduit in said primary chamber extending In testlmony whereof l hereunto aflix my from a point beneath saidV baille and through signature.

said wall. into the Secondary chamber, aconduit foi-'discharging liquid from said sec- JONATHAN KINDLE. 

